Whether you're toting a tablet or slinging a smartphone, apps that help you stay organized can be invaluable — especially for busy students.

Considering it's back-to-school time (enter groan here), we took the iHomework app for a spin on an iPad. While it hasn't been updated since last fall, and it's missing a few features, it's still a powerful and versatile pick that's only 99 cents.

Could both of these "Last Supper" figures be da Vinci self-portraits? (Original image, Wikicommons)

Leonardo da Vinci's "The Last Supper" may include two self-portraits of the legendary Renaissance artist, according to a British art expert.

Ross King says the nose, beards and hairstyles of two of the apostles standing to the right of Jesus in the portrait, Thomas and James the Lesser, match a portrait of Leonardo that was made several years after he created his masterpiece.

King told the Independent that while historians have long-suspected Leonardo placed images of himself in his works, no one has thoroughly researched "The Last Supper" for such evidence.

The 15-x-29-foot painting has been the source of endless speculation, though most of the analysis has focused on hidden meanings within the painting itself, such as how each of the apostles is reacting to the revelation that one of them has betrayed Jesus.

As it has for several years, the 1994 Honda Accord retained its title in 2011 as the nation's most-stolen vehicle in the National Insurance Crime Bureau rankings. The rest of the top 10 looked familiar as well, with crooks maintaining their preference for imported sedans, Detroit pickups and the occasional minivan. Yet this year's list comes with a warning: After a decade of losing targets to electronic deterrents, thieves are getting smarter.